Finding the Fourth Proportional to 293,849,196.81, 405,499,733.73 and 159,887,664.43

Step by Step Solution

1. Step 1: Write the proportion equation
   293,849,196.81 : 405,499,733.73 = 159,887,664.43 : x
2. Step 2: Convert to fraction form
   293,849,196.81/405,499,733.73 = 159,887,664.43/x
3. Step 3: Cross multiply
   293,849,196.81x = 405,499,733.73 × 159,887,664.43
4. Step 4: Simplify right side
   293,849,196.81x = 64,834,405,353,076,600
5. Step 5: Solve for x
   x = 64,834,405,353,076,600/293,849,196.81
6. Step 6: Final answer
   x = 220,638,361.64